<template>
  <div id="app">
    <router-view v-if="isRouterAlive"></router-view>
  </div>
</template>

<script>
export default {
  name: 'app',
  provide(){
    return {
       reload:this.reload
    }
  },
  data(){
    return {
      isRouterAlive:true
    }
  },
  methods: {
     reload() {
       this.isRouterAlive = false,
       this.$nextTick(function(){
         this.isRouterAlive = true
       })
     }
  }
}
</script>

<style>
  .left{
    width:20%;
    border: 1px solid gray;
    float: left;
  }
</style>
